Flashcards
a-level particle physics
Cards in this deck (23)
- 1What does the Feynman diagram for electromagnetic force look like?
- 2What does the Feynman diagram for the strong force between protons and neutrons look like?
- 3Feynman diagram for β+ decay?
- 4What particles are affected by electromagnetic forces?Charged particles
- 5What particles are affected by the weak nuclear forces?Quarks / (All particles with colour)
- 6What is work function?The minimum energy required for the electron to overcome the electrostatic attraction of the atom.
- 7What is Pair Production?Pair production is when a high energy photon creates a particle-antiparticle pair.
E.g. Electron, Positron - 8What is the De Broglie wavelength equation?
- 9What are ions?An atom that has lost or gained an electron.
(Lose electron +Ion)
(Gain Electron -Ion) - 10What is annihilation?When a particle-antiparticle pair collide together and produce 2 gamma photons.
- 11What is electron capture?Electron capture is when a proton in a proton rich nucleus turns into a neutron as a result of weak interaction.
- 12What does the Feynman diagram for electron capture?
- 13What is meant by photoelectric effect?The emission of electron from a metal surface when light is shone upon it.
- 14What demonstrates light acting as a particle?Photoelectric effect
(one particle hits one electron) - 15What demonstrates light acting as a wave?light produces interference and diffraction patterns.
- 16What is meant by Ionisation energy?The minimum energy required for a single electron to be removed from the ground state of the atom.
- 17What are all the leptons?-Electron
-Muon
-Tau
-Neutrinos - 18What happens when an electron transitions to a lower energy level?A photon of energy is emitted.
- 19What is the quark structure of a meson?Quark-antiquark pair
- 20What are the forces and what is the exchange particle for each?Strong Force -( Gluons )
Electromagnetic Force -( Photon )
Weak Force -( W+, W- Bosons )
Gravity Force -( Graviton ) - 21What is specific charge? How do you calculate specific charge?Specific charge is the charge per unit mass.
- 22What are all the mesons?-Pion
-Kaon - 23What are all the baryons?-Proton
-Neutron
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- Flashcards for studying A-level particle physics.
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- Cian Chappell
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- Created by Cian Chappell · Feb 2, 2016
- Copied by Cian Chappell · Feb 2, 2016
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